diff --git a/pkgs/applications/networking/instant-messengers/element/element-desktop-package.json b/pkgs/applications/networking/instant-messengers/element/element-desktop-package.json
index b974b507980a..a5f21f11dfed 100644
--- a/pkgs/applications/networking/instant-messengers/element/element-desktop-package.json
+++ b/pkgs/applications/networking/instant-messengers/element/element-desktop-package.json
@@ -2,7 +2,7 @@
   "name": "element-desktop",
   "productName": "Element",
   "main": "src/electron-main.js",
-  "version": "1.7.19",
+  "version": "1.7.20",
   "description": "A feature-rich client for Matrix.org",
   "author": "Element",
   "repository": {
diff --git a/pkgs/applications/networking/instant-messengers/element/element-desktop.nix b/pkgs/applications/networking/instant-messengers/element/element-desktop.nix
index 04e81337b66e..7da0186022a7 100644
--- a/pkgs/applications/networking/instant-messengers/element/element-desktop.nix
+++ b/pkgs/applications/networking/instant-messengers/element/element-desktop.nix
@@ -8,12 +8,12 @@
 
 let
   executableName = "element-desktop";
-  version = "1.7.19";
+  version = "1.7.20";
   src = fetchFromGitHub {
     owner = "vector-im";
     repo = "element-desktop";
     rev = "v${version}";
-    sha256 = "sha256-al49O13biReX1pCkmljUPLdV1uP//L3fdTLLsay0V1A=";
+    sha256 = "sha256-kQMswcEGsefQ8HCWxYPgvxOKP5cgvXx8oCl5Inh6sOg=";
   };
 in mkYarnPackage rec {
   name = "element-desktop-${version}";
diff --git a/pkgs/applications/networking/instant-messengers/element/element-web.nix b/pkgs/applications/networking/instant-messengers/element/element-web.nix
index fd59384b6367..6ee48d53288c 100644
--- a/pkgs/applications/networking/instant-messengers/element/element-web.nix
+++ b/pkgs/applications/networking/instant-messengers/element/element-web.nix
@@ -12,11 +12,11 @@ let
 
 in stdenv.mkDerivation rec {
   pname = "element-web";
-  version = "1.7.19";
+  version = "1.7.20";
 
   src = fetchurl {
     url = "https://github.com/vector-im/element-web/releases/download/v${version}/element-v${version}.tar.gz";
-    sha256 = "sha256-rHxHP3KneB9SrXRMvcq0pmFj6YnLmazw/pRxMsP2o/k=";
+    sha256 = "sha256-8R7l/Pmymd5+/Fri7z2/TDj1h2FL0QgLICoXajePing=";
   };
 
   installPhase = ''
diff --git a/pkgs/applications/networking/seaweedfs/default.nix b/pkgs/applications/networking/seaweedfs/default.nix
index e38acf244d9e..4b29985685ba 100644
--- a/pkgs/applications/networking/seaweedfs/default.nix
+++ b/pkgs/applications/networking/seaweedfs/default.nix
@@ -2,16 +2,16 @@
 
 buildGoModule rec {
   pname = "seaweedfs";
-  version = "2.14";
+  version = "2.23";
 
   src = fetchFromGitHub {
     owner = "chrislusf";
     repo = "seaweedfs";
     rev = version;
-    sha256 = "1sfchh5qiylxxmph0hgjfaj80mv5pnrm1s34g5lx0vj64jxr5nzb";
+    sha256 = "sha256-MMFVJoiVrA0zy4RM2nyhlu/JfnzIRpxrA3N1jm2R0jI=";
   };
 
-  vendorSha256 = "0g344dj325d35i0myrzhg5chspqnly40qp910ml6zrmp7iszc1mw";
+  vendorSha256 = "sha256-UucbEBjIKRbZFd99BsnG6AAEIQ13+vzKe61k6ZPvE0A=";
 
   subPackages = [ "weed" ];
 
diff --git a/pkgs/desktops/enlightenment/evisum/default.nix b/pkgs/desktops/enlightenment/evisum/default.nix
index 8222c6ed843e..b5475ae00fc9 100644
--- a/pkgs/desktops/enlightenment/evisum/default.nix
+++ b/pkgs/desktops/enlightenment/evisum/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "evisum";
-  version = "0.5.9";
+  version = "0.5.10";
 
   src = fetchurl {
     url = "https://download.enlightenment.org/rel/apps/${pname}/${pname}-${version}.tar.xz";
-    sha256 = "sha256-ao5b4Mhr+fhY19X1g0gupcU8LayR55/kgHSwhGUAfys=";
+    sha256 = "sha256-kCO55UvQnRQhXLRqeJr6SN9FiTeKkh3P7QFkJe+GXjY=";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/development/python-modules/aresponses/default.nix b/pkgs/development/python-modules/aresponses/default.nix
index 53353a137886..f2a7f0f8f26b 100644
--- a/pkgs/development/python-modules/aresponses/default.nix
+++ b/pkgs/development/python-modules/aresponses/default.nix
@@ -11,7 +11,7 @@
 
 buildPythonPackage rec {
   pname = "aresponses";
-  version = "2.1.2";
+  version = "2.1.4";
 
   disabled = !isPy3k;
 
@@ -19,7 +19,7 @@ buildPythonPackage rec {
     owner = "CircleUp";
     repo = pname;
     rev = version;
-    sha256 = "007wrk4wdy97a81imgzxd6sm5dly9v7abmxh9fyfi0vp1p7s75bw";
+    sha256 = "sha256-crMiMZ2IDuYDFt8Bixg3NRhlUa2tqmfzd7ZeHM+2Iu4=";
   };
 
   propagatedBuildInputs = [
diff --git a/pkgs/development/python-modules/certbot/default.nix b/pkgs/development/python-modules/certbot/default.nix
index cb842f1455f1..129ef932bdc5 100644
--- a/pkgs/development/python-modules/certbot/default.nix
+++ b/pkgs/development/python-modules/certbot/default.nix
@@ -9,13 +9,13 @@
 
 buildPythonPackage rec {
   pname = "certbot";
-  version = "1.11.0";
+  version = "1.12.0";
 
   src = fetchFromGitHub {
     owner = pname;
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-IGXiIOLP/Uq6HdXAschp1jFYq52ohRK4VLtkjF4Tb44=";
+    sha256 = "sha256-lMQkVc2UzC5GqEy88rcaJ74CaT3+YWveNDCXql/McRM=";
   };
 
   sourceRoot = "source/${pname}";
diff --git a/pkgs/development/python-modules/pyipp/default.nix b/pkgs/development/python-modules/pyipp/default.nix
index ed5a5f4576ab..dfef79a4dcae 100644
--- a/pkgs/development/python-modules/pyipp/default.nix
+++ b/pkgs/development/python-modules/pyipp/default.nix
@@ -6,7 +6,7 @@
 , fetchFromGitHub
 , pytest-asyncio
 , pytestCheckHook
-, pytestcov
+, pytest-cov
 , yarl
 }:
 
@@ -30,24 +30,10 @@ buildPythonPackage rec {
   checkInputs = [
     aresponses
     pytest-asyncio
-    pytestcov
+    pytest-cov
     pytestCheckHook
   ];
 
-  # Some tests are failing due to encoding issues
-  # https://github.com/ctalkington/python-ipp/issues/121
-  disabledTests = [
-    "test_internal_session"
-    "test_request_port"
-    "est_http_error426"
-    "test_unexpected_response"
-    "test_printer"
-    "test_raw"
-    "test_ipp_request"
-    "test_request_tls"
-    "test_ipp_error_0x0503"
-  ];
-
   pythonImportsCheck = [ "pyipp" ];
 
   meta = with lib; {
diff --git a/pkgs/development/python-modules/pytest-httpserver/default.nix b/pkgs/development/python-modules/pytest-httpserver/default.nix
new file mode 100644
index 000000000000..143d90e2f46b
--- /dev/null
+++ b/pkgs/development/python-modules/pytest-httpserver/default.nix
@@ -0,0 +1,46 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, fetchpatch
+, pytest-asyncio
+, pytest-cov
+, pytestCheckHook
+, requests
+, werkzeug
+}:
+
+buildPythonPackage rec {
+  pname = "pytest-httpserver";
+  version = "0.3.6";
+
+  src = fetchPypi {
+    pname = "pytest_httpserver";
+    inherit version;
+    sha256 = "1wdhbzv6x2v4qsqwgsc5660c4lxplh9b61vfj1zqhbhs36y96vl9";
+  };
+
+  patches = [
+    (fetchpatch {
+      name = "remove-pytest-runner.patch";
+      url = "https://github.com/csernazs/pytest-httpserver/commit/c9752018bc2f13d141dd52c92df75c19ea388836.patch";
+      sha256 = "0b76ywzl2gwddbqqlb662mfv5j42l88l5hffm7jbxzvqbz94mx3k";
+    })
+  ];
+
+  propagatedBuildInputs = [ werkzeug ];
+
+  checkInputs = [
+    pytest-cov
+    pytestCheckHook
+    requests
+  ];
+
+  pythonImportsCheck = [ "pytest_httpserver" ];
+
+  meta = with lib; {
+    description = "HTTP server for pytest to test HTTP clients";
+    homepage = "https://www.github.com/csernazs/pytest-httpserver";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/development/python-modules/solax/default.nix b/pkgs/development/python-modules/solax/default.nix
new file mode 100644
index 000000000000..bce0bc74f912
--- /dev/null
+++ b/pkgs/development/python-modules/solax/default.nix
@@ -0,0 +1,41 @@
+{ lib
+, aiohttp
+, buildPythonPackage
+, fetchPypi
+, pytest-asyncio
+, pytest-cov
+, pytest-httpserver
+, pytestCheckHook
+, setuptools-scm
+, voluptuous
+}:
+
+buildPythonPackage rec {
+  pname = "solax";
+  version = "0.2.5";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0h7q6y2cdkj9dqxw0k7pgz7a7vbpq1qw50pmy9rajphhv2600cbc";
+  };
+
+  nativeBuildInputs = [ setuptools-scm ];
+
+  propagatedBuildInputs = [ aiohttp voluptuous ];
+
+  checkInputs = [
+    pytest-asyncio
+    pytest-cov
+    pytest-httpserver
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [ "solax" ];
+
+  meta = with lib; {
+    description = "Python wrapper for the Solax Inverter API";
+    homepage = "https://github.com/squishykid/solax";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/development/python-modules/xboxapi/default.nix b/pkgs/development/python-modules/xboxapi/default.nix
new file mode 100644
index 000000000000..973f2f6aba24
--- /dev/null
+++ b/pkgs/development/python-modules/xboxapi/default.nix
@@ -0,0 +1,31 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, requests
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "xboxapi";
+  version = "2.0.1";
+
+  src = fetchFromGitHub {
+    owner = "mKeRix";
+    repo = "xboxapi-python";
+    rev = version;
+    sha256 = "10mhvallkwf5lw91hj5rv16sziqhhjq7sgcgr28sqqnlgjnyazdd";
+  };
+
+  propagatedBuildInputs = [ requests ];
+
+  checkInputs = [ pytestCheckHook ];
+
+  pythonImportsCheck = [ "xboxapi" ];
+
+  meta = with lib; {
+    description = "Python XBOX One API wrapper";
+    homepage = "https://github.com/mKeRix/xboxapi-python";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/development/tools/rubocop/Gemfile.lock b/pkgs/development/tools/rubocop/Gemfile.lock
index bfa2b7c238a0..d91fcdbb3e99 100644
--- a/pkgs/development/tools/rubocop/Gemfile.lock
+++ b/pkgs/development/tools/rubocop/Gemfile.lock
@@ -8,7 +8,7 @@ GEM
     rainbow (3.0.0)
     regexp_parser (2.0.3)
     rexml (3.2.4)
-    rubocop (1.9.0)
+    rubocop (1.9.1)
       parallel (~> 1.10)
       parser (>= 3.0.0.0)
       rainbow (>= 2.2.2, < 4.0)
diff --git a/pkgs/development/tools/rubocop/gemset.nix b/pkgs/development/tools/rubocop/gemset.nix
index 3fe8d2cd58ab..7de3fd53489e 100644
--- a/pkgs/development/tools/rubocop/gemset.nix
+++ b/pkgs/development/tools/rubocop/gemset.nix
@@ -66,10 +66,10 @@
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "1wz0prg4kx36smbk7fib4a8cdxrj5b5b31c8bavm082vgcpfk759";
+      sha256 = "06npybjypxsrz09z8ivxqfcwzpbgif6z3hwpp0ls8znqlgp3m922";
       type = "gem";
     };
-    version = "1.9.0";
+    version = "1.9.1";
   };
   rubocop-ast = {
     dependencies = ["parser"];
diff --git a/pkgs/os-specific/linux/pcm/default.nix b/pkgs/os-specific/linux/pcm/default.nix
index f791661d2ef1..c0b8b59ebb51 100644
--- a/pkgs/os-specific/linux/pcm/default.nix
+++ b/pkgs/os-specific/linux/pcm/default.nix
@@ -1,14 +1,14 @@
 { lib, stdenv, fetchFromGitHub }:
 
 stdenv.mkDerivation rec {
-  version = "202011";
+  version = "202101";
   pname = "pcm";
 
   src = fetchFromGitHub {
     owner = "opcm";
     repo = "pcm";
     rev = version;
-    sha256 = "09p8drp9xvvs5bahgnr9xx6987fryz27xs2zaf1mr7a9wsh5j912";
+    sha256 = "sha256-xiC9XDuFcAzD2lVuzBWUvHy1Z1shEXM2KPFabKvgh1Y=";
   };
 
   installPhase = ''
diff --git a/pkgs/servers/home-assistant/component-packages.nix b/pkgs/servers/home-assistant/component-packages.nix
index 0f5ccfb6ee29..b6c3a281f2e2 100644
--- a/pkgs/servers/home-assistant/component-packages.nix
+++ b/pkgs/servers/home-assistant/component-packages.nix
@@ -761,7 +761,7 @@
     "solaredge" = ps: with ps; [ stringcase ]; # missing inputs: solaredge
     "solaredge_local" = ps: with ps; [ ]; # missing inputs: solaredge-local
     "solarlog" = ps: with ps; [ ]; # missing inputs: sunwatcher
-    "solax" = ps: with ps; [ ]; # missing inputs: solax
+    "solax" = ps: with ps; [ solax ];
     "soma" = ps: with ps; [ pysoma ];
     "somfy" = ps: with ps; [ aiohttp-cors ]; # missing inputs: pymfy
     "somfy_mylink" = ps: with ps; [ ]; # missing inputs: somfy-mylink-synergy
@@ -944,7 +944,7 @@
     "x10" = ps: with ps; [ ];
     "xbee" = ps: with ps; [ ]; # missing inputs: xbee-helper
     "xbox" = ps: with ps; [ aiohttp-cors ]; # missing inputs: xbox-webapi
-    "xbox_live" = ps: with ps; [ ]; # missing inputs: xboxapi
+    "xbox_live" = ps: with ps; [ xboxapi ];
     "xeoma" = ps: with ps; [ pyxeoma ];
     "xfinity" = ps: with ps; [ ]; # missing inputs: xfinity-gateway
     "xiaomi" = ps: with ps; [ ha-ffmpeg ];
diff --git a/pkgs/tools/misc/youtube-dl/default.nix b/pkgs/tools/misc/youtube-dl/default.nix
index fea9de8caca9..fe065bf4ab0d 100644
--- a/pkgs/tools/misc/youtube-dl/default.nix
+++ b/pkgs/tools/misc/youtube-dl/default.nix
@@ -18,11 +18,11 @@ buildPythonPackage rec {
   # The websites youtube-dl deals with are a very moving target. That means that
   # downloads break constantly. Because of that, updates should always be backported
   # to the latest stable release.
-  version = "2021.01.24.1";
+  version = "2021.02.04.1";
 
   src = fetchurl {
     url = "https://yt-dl.org/downloads/${version}/${pname}-${version}.tar.gz";
-    sha256 = "001hs73fpm4nxcgn60n9wlsdmiv40f4b1k6hkl4g4wyywv9ic9fy";
+    sha256 = "0rn8plld2bzmwbcvxxgz3hn24kjyal5kkwbpb5nd4w84mdjkhjqa";
   };
 
   nativeBuildInputs = [ installShellFiles makeWrapper ];
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index a2e8a57ad8f1..68b10a9547d8 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -6101,6 +6101,8 @@ in {
 
   pytest-httpbin = callPackage ../development/python-modules/pytest-httpbin { };
 
+  pytest-httpserver = callPackage ../development/python-modules/pytest-httpserver { };
+
   pytest-instafail = callPackage ../development/python-modules/pytest-instafail { };
 
   pytest-isort = callPackage ../development/python-modules/pytest-isort { };
@@ -7268,6 +7270,8 @@ in {
 
   softlayer = callPackage ../development/python-modules/softlayer { };
 
+  solax = callPackage ../development/python-modules/solax { };
+
   solo-python = disabledIf (!pythonAtLeast "3.6") (callPackage ../development/python-modules/solo-python { });
 
   somajo = callPackage ../development/python-modules/somajo { };
@@ -8330,6 +8334,8 @@ in {
 
   xattr = callPackage ../development/python-modules/xattr { };
 
+  xboxapi = callPackage ../development/python-modules/xboxapi { };
+
   xcaplib = callPackage ../development/python-modules/xcaplib { };
 
   xcffib = callPackage ../development/python-modules/xcffib { };